Security grille



FIG. 1 is a perspective view of a security grille showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is an elevational view of the opposite side thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front elevational view of another embodiment of my design;

FIG. 9 is a top view of the embodiment of FIG. 8;

FIG. 10 is a side elevational view of one style of vertical bar in this embodiment;

FIG. 11 is a side elevational view of another style of vertical bar in this embodiment; and

FIG. 12 is a perspective view of the embodiment of FIG. 8. 

The ornamental design for a security grille, as shown and described. 